A lower bound of Chernoff type for symmetric quantum hypothesis testing

A lower bound of Chernoff type for symmetric quantum hypothesis testing
复制标题

对称量子假设检验的切尔诺夫型下界

DOI:
--
复制
发表时间:
2006
期刊:
--
影响因子:
--
通讯作者:
A. Szkola
A. Szkola
中科院分区:
--
文献类型:
--
作者:
M. Nussbaum;A. Szkola

文献摘要

被引文献

相似文献

我们考虑对称假设检验,假设被允许在一个有限维单位代数捕获的经典和量子的情况下,同时任意的密度算子。我们证明了渐近可达误差指数的一个Zeroff型下界。在交换密度算子的情况下,它与经典的Beschoff界一致。此外,在某些非交换的特殊情况下,该界也是紧的。这个界的一般可达性仍然是一个悬而未决的问题。
We consider symmetric hypothesis testing, where the hypotheses are allowed to be arbitrary density operators in a finite dimensional unital Calgebra capturing the classical and quantum scenarios simultaneously. We prove a Chernoff type lower bound for the asymptotically achievable error exponents. In the case of commuting density operators it coincides with the classical Chernoff bound. Moreover, the bound turns out to be tight in some non-commutative special cases, too. The general attainability of the bound is still an open problem.